Which statement accurately reflects the relationship between lubrication points and oil addition?

• A. Lubrication points should be lubricated after adding oil
• B. Lubrication points should always be cleaned off before adding oil
• C. Lubrication points should be painted before oil addition
• D. Lubrication points should be cooled before oil addition

Answer: (B)

Cleanliness at lubrication points is essential for effective lubrication. Before adding oil, thoroughly clean the lubrication points to remove dirt, dust, old oil residues, and any debris. If contaminants are present when new oil is added, they can be carried into bearings and passages, causing accelerated wear, clogged channels, and weaker oil films. Cleaning first allows the oil to coat clean surfaces and form a proper lubricating film, maximizing protection and performance.

Adding oil after other procedures that don’t address cleanliness—such as painting or cooling steps—won’t prevent contamination and can introduce particulates or unnecessary delays. The important practice is to reset the area to a clean state right before oil is introduced.